Stave-machine.



S. R. ANDERSON. sTAvB MAGHINE. APPLIUATION FILED APB. 9, 1908. 923,477. Patented June 1,1909.

6 SHEETS-SHEET 1.

'abbr/w36 rm: mmm:l Firmes co., wAsmNswN. v. c,

S. R. ANDERSON.

STAVE MACHINE.

APPLIOATION FILED APR. 9. 190s.

Patented June 1, 1909.

6 SHEETS-SHEET 2.

S. R. ANDERSON.

sTAvE lsfum111-1-m` APPLICATION FILED APB. 9, 1908.

Patented June 1, 1909.

6 SHEETS-SHEET 3.

@gli/Meow@ S. R. ANDERSON.

STAVE MACHINE. APPLIUATION :PILBB APB'. 9, 190s.

Patented June 1, 1909.

6 SHEETS-SHEET 4.

me Nokms FETE/2s co., wxsnuvcrow. D. c

S. R. ANDERSON. STAVE MACHINE. v ALPPLIGATIOH FILED APR. 9, 190s.

Patented June 1, 1909.

6 SHEETS-SHEET 5.

S. R. ANDERSON.

STAVB MAGHINE. APPLIGATION FILED SAPR. 9, 1908.

Patented June 1,1909.

6 SHEETS-SHEET 6.

PHILIUMmIfI NMW E,... lllllfl 1 ll. i l fm.. n mm n@ Ms www mmMaL.. A A@ l1|\\ Snom/vbo@ f 502mm@ Z Z. fedfmfz SAMUEL R. ANDERSON, OF I-IARDIN, ILLINOIS.

STAVE -MA CHINE No. ees-,477.'

Specification oi Letters Patent.

Application filed. April 9, 1908.

Patented June 1, 1909.

Serial No. @6,143

To all afi/tom it yma/ z/ concern:

Be it known that I, SAMUEL .fiNnnnson, a citizen of the United States, residing at Hardin, in the county of Calhoun and State of Illinois, have invented certain new and useful Improvements in Stave-Machines; and I do declare the following to he full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to stave cutting machines, and particularly to cylinder self feed ing machines.

The object of the invention is to provide a device of this character which may be cheaply constructed, will not take up any appreciable floor space and which will thoroughly accomplish the functions designed for such machines in a rapid and effective manner.

In cuttiiig sugar barrel staves and the like it is unnecessary to have the, refinement of operation and finish that is necessary with staves to be used for wine and whisky casks, and it is therefore desirable that this class of staves he turned out with the utmost rapidity in order to economize the cost of such barrels. Heretofore in a number of machines it has been necessary to equalize, chamfer and croZe the staves by separate operations after the stave is formed. This of course entailed additional labor, necessitated the employment of additional workmen, making the production of barrels almost prohibitive. figain in the feeding of the bolt it has been somewhat of a problem, and has been accomplished by dogs similar to those used in saw mill operations. This type of feeding does not permit of sufhciently rapid cutting and frequently causes staves to be cut which are not thick enough.

It is the object of my invention to avoid all of these difficulties and to so construct the machine that when in operation the feed will be uniform and rapid, and the staves cut equally and of a uniform thickness and size with their ends chamfered and crozed.

lhfith these and other objects in view, the invention consists of certain novel features of construction, combination and arrangement of parts, as will be more fully described and particularly pointed out in the appended claims.

In the drawings, Figure 1 is a front elevation, Fig. 2 is a top plan view, Fig. 3 .is an end 'j view, Fig. 4 is a transverse section, Fig. 5 is a longitudinal section, Fig. 6 is a fragmentary cross section on the lines of 2. Fig. 7 is a fragmentary longitudinal section on the line Iy-y of Fig. 1, Fig. 8 is a detail top plan 1 view of the stave knife plate with the stave knife and one of the supplemental knives secured thereto, Fig. 9 is a similar view with the stave knife removed and showing the mode of attaching the supplemental knives, Fig. l() is a plan view of the sta-ve knife, Fig. 11 is a section taken on line 11-11 of Fig. 8. Fig. 12 is a section on line 12-12 of Fig. S. Fig.

13, is a detail elevation of the stave knife plate and showing the relation of the stave knife to the equalizing chamfering and croZ- ing knives, Fig. 14, is a detail section of a stave formed by the knives shown in Fig. 13, Fig. 15, is a view similar to Fig. 13 showing one of the chamfering knives attached to the stave plate, Fig. 15, is a similar view showing one of the equalizing knives in place, Fig. 17, is a top plan view of one of the right hand equalizing, chamfering and crozing knives, Fig. 18, is a section on the line 18-18 of Fig. 17, Fig. 19, is a detail perspective view of the stave shown in section in Fig. 1st, and Fig. 20, is a sectional view on line 20-20 of Fig. 2.

Referring more especially to the drawings, 1 represents a suitable support from which projects the bearing support 2, at one end and a semi-cylindrical bearing arch member 3, at the opposite end. Separated from the support 2 is a bearing supporting arch 4, which acts in conjunction with the bench 2 to support the driving shaft 5, journaled in bearings G and .7, carried respectively bv the support 2 and the arch 4. To the shaft o are secured the usual 'fly or balance wheels S, the idle pulley 9 and a driving wheel 10. This shaft projects through the bearing 6 for some distance and is keyed to the right hand end plate 11 Aof the cylinder 12. The opposite end of the cylinder has a. similar cylindrical end plate 13, which is mounted in the cylindrical bearing member 3 and held in place by an arc-shaped retaining member 14, secured to the bearing member 3 in any suitable manner so as to prevent the vertical movement of the cylinder. A suitable oil cup is provided as is common in such constructions, and the end of the disk 18 is centrally apertured, as at 15 for a purpose to be hereinafter described. Each disk of the cylinder is provided with outstanding circumferential cleats 16, upon which the guide supporting plates.

17 are adjustably secured by having passed through their ends the set screws 18 and 19, the former being passed through from the inner side and the latter being passed through from the outer side. These supporting plates have arranged at equal distance on their surfaces the curved guiding bars 20 and 21, which overlap the sides of the plate and are recessed on their under side to prevent rotary slipping. The rear end of the guide bars 20 and. 21 are extended back and adjacent the blade supporting plate 22, and the former are cut away at 23 for a purpose to be hereinafter described.

Arranged around the circle of a somewhat larger circumference than that defined by the cleats 16 ar e a plurality of cleats 24, upon which are secured the knife plates 22, in a manner similar to the securing of the plates 17. These knife plates are recessed upon their forward faces as at 25, to receive stave knives 26, which are provided with a longitudinal row of transverse slots 26 adapted to be engaged by the attaching bolts 27, so that the knives may be adjusted forwardly or rearwardly as the case may require by the set screws 28 seated in the depressions 29 and screwed into the web 30. The clamping screws 27 which secure the knife 26 to the knife plate 22 also hold the guiding members 31 and 32 in position as is shown in Figs. 4 and 5. The guide members 31 extend forwardly and have their points in engagement with the knife 26, adiacent its edge and the guide members 32 extend to a point adjacent the forward edge of the knife supporting plate 22. The stave knife 26 is so constructed that when in position in the recess 25 its back is fiush with the top of the supporting plate, and its edge preferably flush with the periphery of the cylinder so that there will be little friction of the bolt thereagainst as it passes from the edge of the knife to the guide bars 20. There are three of these knives surrounding the cylinder and connected for operation in conjunction with each are the finishing knives which will be called hereafter the equalizing knives 33, the equalizing andv chamfering knives 34 or the equalizing, chamfering and crozing knives 35. When the equalizing knives are used, the remaining sets are, of course, not secured to the cylinder, and when the equalizing and chamfering knives are used, the other sets are not secured to the cylinder. This is also true with the equalizing, chamferin and crozing knives. ln order to properly support either of the sets of finishing knives with relation to the stave knives 26 I slit the knife supporting plate 22, as shown in Fig. 9, at 36, so as to receive the locking bolts 27', which pass therethrough and engage the knives adjacent their opposite sides so as to hold them from rotary movement as well as from longitudinal movement. The knives knife is connected ward edge of the base plate l are better shown in Figs. 13, 15 and 16., where their peculiar shape is especially brought out in a manner which will indicate their usefulness. It will be understood that the knives 33, 34 and 35 are used alternately, that is, if it is desired to simply cut and equalize a stave, the type of knife shown in Fig. 16, is employed. Where it is desired to equalize and chamfer the staves, the type of knife shown in Fig. 15, is employed. Where it is desired to equalize, chainfer and croze the staves, the type of knife shown in Fig. 13, is employed. With the first mentioned type of knife, No. 33, the cutting blade a of the directly with the body Z1 at an acute angle thereto while with the knife shown in Fig. 15, the blade c is connected directly with the body d at an obtuse angle thereto. In the knife shown in Fig. 13 there is provided an equalizing and chamfer blade e secured at an angle to the body f and connected to this are the crozing edges of the knife g and 7L. All of these parts are clearly shown in Figs. 13, 15 and 16 and the position of the knives with relation to the stave knife is shown in F ig. 11.

In order to feed the bolts to the stave and finishing knives I provide a base plate 37, which is mounted upon a bracket 38, carried by the bearing members 2 and 3, and which lies closely adjacent the periphery of the respective disks 11 and 13. Upon the forsecure the cut off bar 39 by bolts 40, which pass through transverse slots 41, arranged therein so that the bar may be adjusted toward and away from the knives as is desired. Suitable slides 42 and 43, the former being adjustably secured to the base plate by bolts'44 passing through a longitudinal slot 45, are arranged to engage the rear edge of the cut o'i bar so as to further insure its proper position with respect to the knives. In order that the slides may be properly adjusted l provide set screws 46, which pass through the depending ends 47, and engage the front edge of the base plate. The slides are beveled toward the cut off bar and have pivoted between them a pair of core ejectors 48, as shown in Fig. 20, which are mounted upon a transverse shaft 49, and have at their inner ends the upstanding hooks 50. These ejectors are normally held with their forward ends depressed by a spring bar 51, which has its arms extending out and engaging the rear end of the core ejectors. A foot lever 52 connected by links 53 to the rear end of the core ejectors is provided so that their front ends may be raised and the core raised from its position upon the cut o'.T bar where it may be removed from its position on the slides.

Extending up from the side of the bearing members 2 and 3 are a pair of shaft support` ing arms 54, which have journaled in their upper ends the feed shaft55, which is noriii 'from the inner end of shaft 5.

mally held in one position by a spring 56 connected to the member 2, and to a lateral arm 57 carried by the shaft 55. This arm and its spring normally tend to hold the feed arms 58 in raised )osition so that a bolt may be placed upon tlie guides. These feeding arms extend down along the outside guides Ll2 and are held in position against the bolt to be acted upon by a suitable lever 59 mounted on one end of the shaft 55, and centrolled in any suitable manner by the operator. The spring 60 is secured to a wheel 6l on the shaft, and to the end of the base plate so that it normally overcomes the spring 56. vWhen it is desired to eject the bolt from the base plate the spring 60 is released thus permitting the spring 56 to operate and the arms 58 to be raised out of the way.

As the staves are out off from the bolt there must be some mechanism provided for conveying them from the inside of the cylinder and in order to accomplish this function l provide a conveyer 62, which is arranged inside of the cylinder and extends out of the aperture 15 thereof, where it is supported upon a bracket 63. The inner end of the conveyer frame is provided with a bearing element 64, which is apertured at to receive a stub s haft 66 extending outwardly This bearing element 64 supports the side members 87, in which are journaled rollers 68 of the conveyer 62. Suitable shields 69 and 70 extend outwardly from the sides and are made adjustable by having slots in their inner ends, with which are engaged the locking bolts 72. The outer roller of the conveyer 62 is provided with an extended shaft 73 upon which is mounted a pulley 7 4, adapted to receive power from a cross belt 75, driven by a pulley 76 carried upon the transverse shaft 77, which is mounted in vertical supporting arms 7S and 79, carried respectively by the supporting bracket 63 and the side member 2. The opposite end of the shaft 77 is provided with a pulley 80, driven by a belt 6l from a pulley 82 keyed upon the main shaft 5. A supporting roller 83, which is journaled in bearings carried by the adjustable arms Se mounted upon the brackets 63 and seated in a recess 85. This roller supports the front end of the conveyer 62 and is adjustable for the purpose of taking up slack in the conveyer belt.

ln the operation of the device a bolt or log is placed upon the feed table and forced unto engagement with the gage bars 21 by the aetion of the feeding arms 58. The cylinder is revolved from the driving pulley l() and as the knives come into engagement with the bolt a stave is cut off and dropped onto the shields 69, which deliver the stave to the conveyer 62, upon wnich it is transported to the delivery end` Each revolution of the cylinder cuts three staves from the bolt, and after the majority of the body has been used the bolt is ejected by releasing the spring 60, thus allowing the feeding arms 58 to rise under tension of the spring 56. rlhe foot lever, 52, is then depressed which through its links 53 raises the forward ends of the core ejectors 48. The bolt is then removed by hand and a new one replaced and the operation continued. ln order to cut a thicker or thinner stave knife plates 22 are raised or lowered by manipulating the clamping bolts so as to raise or lower the forward end and thereby change the relation of the edge of the knife with the guide bars, as will be understood by those versed in the art. The relation of the gage bars 2l to the knives may also be adjusted in the same manner, and the stave knives may be moved forward by loosening the screws 27 and adjusting the set screws 28 to suit.

vf'rom the foregoing description, taken in connection with the accompanying drawings, the construction and operation of the invention will be readily understood without requiring a more extended explanation.

Various changes in the form, proportion and the minor details of construction may be resorted to without departing from the principle or sacrificing any of the advantages of this invention as defined in the appended claims.

Having thus described my invention what l claim and desire to secure by Letters-Patent, is'.

l. A stave cutting machine comprising a stationary feed table, means for feeding work thereover, a rotary cylinder mounted adjacent said table, knife supporting means adjustably carried by said cylinder, stave knives adjustably mounted thereon, and means carried by said knife supporting means for guiding the staves as they are cut by the knives, said guiding means together with the stave knives being removable with the supporting means from the cylinder as a unit.

2. A stave cutting machine comprising a feed table, means for feeding work, thereover, a rotary cylinder mounted adjacent said feed table, a plurality of knife supporting plates removably and adjustably secured to the cylinder, stave knives adjustably mounted thereon, gage bar supporting means adjustably mounted on the cylinder, gage bars secured thereon intermediate the knives adapted to guide the material to the knives, means carried by the knife supporting plate for guiding the staves after being cut, and

llO

means for carrying the staves out of the cylinder.

3. A stave cutting machine comprising a feed table, means for feeding work thereover, a rotary cylinder mounted adjacent said feed table, a plurality of adjustable stave cutting knives mounted thereon, a plurality of end Cir finishing knives adjustably mounted With and With relation to the stave knives, means ad justable with the knives for guiding the staves after being cut, means for receiving and transporting the staves.

4. A stave cutting machine comprising a feed table, means to feed Work thereover, a rotary cylinder arranged adjacent said table, a plurality of recessed knife supporting plates adjustably mounted upon said Cylinder, stave knives adjustably carried in said recesses, a plurality of end finishing knives adjust-ably mounted upon said stave supporting plates, a plurality of guard bars interl mediate the knives, means for adjusting; them to determine the thickness of the cut,

a feed table, a out olf bar mounted on the feed table, means to adjustably secure said bar in position, a plurality of bolt guiding slides arranged on the feed table, in engagement with the cut off bar, and independent means to adjustably hold the slides in engagement With the bar.

6. A stave cutting machine comprising a rotary cylinder, a plurality of knives thereon, a feed table arranged adjacent the cylinder, a cut off bar adjustably mounted on the feed table, bolt guiding slides mounted on the feed table, and means for adjusting said slides, said slides being adapted to engage the cut off bar to hold it in position.

In testimony whereof l have hereunto set means to clamp the stave knives upon the my hand in presence of two subscribing Witplates, and means held in position by said nesses.

clamping means for guiding the staves after being cut, said means being movable with the plates and knives.

5. A stave cutting machine comprising a rotary cylinder With cutting knives thereon,

SAMUEL R. ANDERSON.

vWitnesses:

CHAs. H. LAMAR, GEVERT H. VINTJEN. 

